<template>
  <div>
    <div class="search">
      <input
        v-model="keyword"
        class="search-input"
        type="text"
        placeholder="输入城市名或拼音"
      />
    </div>
    <div class="search-content" v-show="keyword" ref="search">
      <ul>
        <li
          class="search-item border-bottom"
          v-for="(item, i) in list"
          :key="i"
          @click="handleCityClick(item.name)"
        >
          {{ item.name }}
        </li>
        <li v-show="!list.length" class="search-item border-bottom">
          没有找到匹配数据
        </li>
      </ul>
    </div>
  </div>
</template>

<script>
import Bscroll from "better-scroll";
import { mapMutations } from "vuex";
import { cities } from "./data.js";
export default {
  name: "CitySearch",
  props: {
    // cities: Object,
  },
  data() {
    return {
      keyword: "",
      list: [],
      timer: null,
      cities: cities,
    };
  },
  watch: {
    keyword() {
      if (this.timer) {
        clearTimeout(this.timer);
      }
      if (!this.keyword) {
        this.list = [];
        return;
      }
      this.timer = setTimeout(() => {
        const result = [];
        for (let i in this.cities) {
          this.cities[i].forEach((item) => {
            if (
              item.spell.indexOf(this.keyword) > -1 ||
              item.name.indexOf(this.keyword) > -1
            ) {
              result.push(item);
            }
          });
        }
        this.list = result;
      }, 100);
    },
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.search, { click: true });
  },
  updated() {
    this.scroll = new Bscroll(this.$refs.search, { click: true });
  },
  methods: {
    handleCityClick(city) {
      this.changeCity(city);
      this.$router.push("/");
    },
    ...mapMutations(["changeCity"]),
  },
};
</script>

<style lang="stylus" scoped>
@import '@/assets/styles/varibles.styl'
.search
  height: .72rem
  padding: 0 .1rem
  background: $bgColor
  .search-input
    box-sizing: border-box
    width: 100%
    height: .62rem
    padding: 0 .1rem
    line-height: .62rem
    text-align: center
    border-radius: .06rem
    color: #666
.search-content
  z-index: 1
  overflow: hidden
  position: absolute
  top: 1.58rem
  left: 0
  right: 0
  bottom: 0
  background:  #666
  .search-item
    line-height: .62rem
    padding-left: .2rem
    background: #fff
    color: #666
</style>
